Do the following:
- Connect to your ESX/ESXi server via Putty.
- After successfully connecting to an ESX host, open the command prompt.
- To get the VMware version, type "vmware –l" and press ENTER. Below is a sample output of the command:
VMware ESXi 5.0.0 Update 1
VMware ESXi 4.1.0 Update 2 - For the build, type "vmware –v" and press ENTER. Below is a sample output of the command:
VMware ESXi 4.1.0 build-582267
VMware ESXi 5.0.0 build-623860